Testis H&E cavity of the tunica vaginalis tunica albuginea seminiferous epithelium seminiferous tubules
Seminiferous tubules: the site of germatozoon production total of 800-1600 tubules about 600 M 66%of the testicular volume Interstitial area: *testicular interstitial cells which produce testosterone *connective tissue capillary
• Seminiferous tubules: * the site of germatozoon production * total of 800-1600 tubules about 600 M * 66% of the testicular volume • Interstitial area: *testicular interstitial cells which produce testosterone *connective tissue ; capillary
seminiferous tubule Testis H&E Spermatogenic epithelium *Spermatogenic cell: spermatogonia *sustenacular cell (Sertoli cell): Seroli cell spermatids (maturation phase】 ◆basement membrane ◆nyoid cell smooth muscle
Spermatogenic epithelium *Spermatogenic cell: *sustenacular cell (Sertoli cell): basement membrane myoid cell seminiferous tubule
Stages of spermatogenic cell development Spermatogonium Base of tubule Spermatocytes Spermatogenesis Spermatids Spermatozoon Lumen of tubule
Stages of Stages of spermatogenic spermatogenic cell development cell development Spermatogonium Spermatocytes Spermatids Spermatozoon Spermatogenesis Lumen of tubule Base of tubule
Spermatogonium *at the base of epithelium Testis H&E *two types Leydig -type A cells smooth muscle type Ad:maintains the germ cell pool type ap Sertoli cells developed spermatogonia -type B spermatids primary spermatocytes primary spermatocytes
Spermatogonium *at the base of epithelium *two types -type A type Ad: maintains the germ cell pool type Ap -type B primary spermatocytes developed